U. S. NATIONAL MUSEUM 



BULLETIN 35, PL. XX 



Fig. 1. ProdeIj)himis froenatus (F. CuYier). Young. 



(From F. Cuvier, Histoire naturelle des Cetace's, 1836, pi. 10, fig. 1.) 



Fig. 2. Prodelphinus longirostris (Gray). 

 (From Gray, Synopsis of the Whales and Dolphins, 1868, pi. 25. Deljihinus microps.) 



Genus PRODELPHINUS. 



